Geology and Physiography
The Boston Mountains are a physiographic section of the larger Ozark Plateaus province, which in turn is part of the larger Interior Highlands physiographic division.
The area is underlain by Pennsylvanian sandstone, shale, and siltstone, where some folding and faulting has occurred. The sandstone beds become thinner, but more shaly in the west as the mountains decline in elevation.
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